Question:
In physics, how do you know work is being done?
In the following situations, how do you determine whether work is being done or not?1. a crane lifting a car2. a tug of war that is evenly matched3. a train engine pulling a loaded boxcar initially at rest
Answer:
In physics, mechanical work is the amount of energy transferred by a force acting through a distance. 1. If the car has weight and the crane can move the car a distance, in this case height, then work is being done 2. If the rope never moves, then equal force is being exerted on each side of the rope, but no work is being accomplished, because there is no movement. But in tug of war, what is more common is the rope moves back and forth, but evenly matched teams might not be able to move the flag all the way to the finish line. But each time the rope moves in one direction or the other, work is performed 3. if the car has weight, it will take force to move it from rest to a new location. You have force and distance, therefore work
aod aode came out in 92 and a half in Ford/Mercruy
work done force x distance (in the same direction as the force) Therefore in case 1, work is being done as the upward force applied on the car by the crane and the direction the car moves is the same. In case 3, work is also being done as the force and direction the load moves are the same In case 2 no work is being done as the tug of war is evenly matched therefore you can assume that the distance moved is zero so there must be no work done
In physics, mechanical work is the amount of energy transferred by a force acting through a distance. 1. If the car has weight and the crane can move the car a distance, in this case height, then work is being done 2. If the rope never moves, then equal force is being exerted on each side of the rope, but no work is being accomplished, because there is no movement. But in tug of war, what is more common is the rope moves back and forth, but evenly matched teams might not be able to move the flag all the way to the finish line. But each time the rope moves in one direction or the other, work is performed 3. if the car has weight, it will take force to move it from rest to a new location. You have force and distance, therefore work
Idk about the crown vic but my 93 f-150 with a 351w came with a AODE
aod aode came out in 92 and a half in Ford/Mercruy
work done force x distance (in the same direction as the force) Therefore in case 1, work is being done as the upward force applied on the car by the crane and the direction the car moves is the same. In case 3, work is also being done as the force and direction the load moves are the same In case 2 no work is being done as the tug of war is evenly matched therefore you can assume that the distance moved is zero so there must be no work done
Idk about the crown vic but my 93 f-150 with a 351w came with a AODE
1. a crane lifting a car When the car is raised, its total mechanic energy is being increased by the amount of potential energy being stored U mgh h, the the height raised 2. a tug of war that is evenly matched Their is work done, by the winning team, but the opposite team compensates that work by pulling. Net work is zero though. 3. a train engine pulling a loaded boxcar initially at rest Obviously, the train is storing Kinetic energy when in motion due to the increase in velocity K(1/2)mv^2 ANSWER
Idk about the crown vic but my 93 f-150 with a 351w came with a AODE
aod aode came out in 92 and a half in Ford/Mercruy
work done force x distance (in the same direction as the force) Therefore in case 1, work is being done as the upward force applied on the car by the crane and the direction the car moves is the same. In case 3, work is also being done as the force and direction the load moves are the same In case 2 no work is being done as the tug of war is evenly matched therefore you can assume that the distance moved is zero so there must be no work done
In physics, mechanical work is the amount of energy transferred by a force acting through a distance. 1. If the car has weight and the crane can move the car a distance, in this case height, then work is being done 2. If the rope never moves, then equal force is being exerted on each side of the rope, but no work is being accomplished, because there is no movement. But in tug of war, what is more common is the rope moves back and forth, but evenly matched teams might not be able to move the flag all the way to the finish line. But each time the rope moves in one direction or the other, work is performed 3. if the car has weight, it will take force to move it from rest to a new location. You have force and distance, therefore work
1. a crane lifting a car When the car is raised, its total mechanic energy is being increased by the amount of potential energy being stored U mgh h, the the height raised 2. a tug of war that is evenly matched Their is work done, by the winning team, but the opposite team compensates that work by pulling. Net work is zero though. 3. a train engine pulling a loaded boxcar initially at rest Obviously, the train is storing Kinetic energy when in motion due to the increase in velocity K(1/2)mv^2 ANSWER
